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United States Patent | 5,201,790 |
Mukai ,   et al. | April 13, 1993 |
A fuel control apparatus of an engine comprises fuel control means for controlling fuel supply means in such a manner that an amount of fuel supplied to the engine corresponds to an intake pressure on the basis of a signal outputted from intake pressure detecting means for detecting the intake pressure of an intake passageway, exhaust resistance changing means for changing an exhaust resistance of an exhaust passageway correspondingly to the operating condition of the engine, and correction means for correcting a supply amount of the fuel to be controlled by the fuel control means when the exhaust resistance of the exhaust passageway is changed by the exhaust resistance changing means.
Inventors: | Mukai; Manabu (Hiroshima, JP); Kato; Shigeo (Hiroshima, JP); Wakutani; Shinichi (Hiroshima, JP); Imai; Shoji (Hiroshima, JP) |
Assignee: | Mazda Motor Corporation (Hiroshima, JP) |
Appl. No.: | 650179 |
Filed: | February 4, 1991 |
Feb 05, 1990[JP] | 2-25707 |
Current U.S. Class: | 60/612; 60/312; 123/383 |
Intern'l Class: | F02B 027/02; F02B 037/00 |
Field of Search: | 60/312,601,603,612 123/383 |
2383979 | Sep., 1945 | Lysholm | 123/383. |
4962742 | Oct., 1990 | Nishizawa et al. | |
5003781 | Apr., 1991 | Shibata et al. | 60/612. |
Foreign Patent Documents | |||
3900034 | Jul., 1989 | DE. | |
3921965 | Jan., 1990 | DE. | |
178752 | Jul., 1989 | JP. | |
305214 | Apr., 1955 | CH | 60/603. |